Well, I bumbled into an answer that didn't require learning a new piece of software...though I thank you for your suggestions and will look at Blender.
However, I just made a long rectangle in the color I wanted, did a "map object -> sphere" , and got precisely what I wanted, a beautiful, shiny and highlighted submarine shape.
Couldn't be easier...will need to experiment with the right size rectangle to get what I want, but otherwise, zap, boom, p-p-p-pow and I'm done.
Thanks-
Jim Clark